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package fr.ove.openmath.jome.formaters.om;

/**
 *
 * @author Mr.Sam
 */
import fr.ove.utils.*;
import fr.ove.openmath.jome.model.*;
import fr.ove.openmath.jome.formaters.om.*;

/**
* Formats the formula tree structure as its corresponding OpenMath object.<BR>
* This is the formater of operators which have "classical" OpenMath format :<BR>
* <OMA><BR>
*   <OMS cd="foo" name="bar" /><BR>
*   ... lots of other things ...<BR>
* </OMA><BR>
*
* @author © 2000 DIRAT Laurent
* @version 1.0 07/01/2000
*/
public class ClassicalOperatorFormater implements Formater {
    /**
    * Returns the specified object formatted as a string.
    * @param formatedObject the formatted object (for structured object, could represents the beginning).
    * @param formaterRepository where the different other formaters are.
    * @param obj the object to format.
    */
    public String format(String formatedObject, FormaterRepository formaterRepository, Object obj) {
        OpenMathFormater omFormater = (OpenMathFormater) formaterRepository;
        FormulaTreeStructure fts = (FormulaTreeStructure) obj;
        
        FormulaTreeStructure ftsChild;
        Formater formater;
        
        String objectId = fts.getResourceIdentifier();
        
        formatedObject += omFormater.writeStartApplication();
        formatedObject += omFormater.writeSymbol(objectId);
        
        int nbChildren = fts.getNbChildren();
        for (int i = 0; i < nbChildren; i++) {
            ftsChild = (FormulaTreeStructure) ((FormulaTreeStructure) obj).getChild(i);
            objectId = ftsChild.getResourceIdentifier();
            formater = formaterRepository.getFormater(objectId);
            formatedObject = formater.format(formatedObject, formaterRepository, ftsChild);
        }
        formatedObject += omFormater.writeEndApplication();
        
        return formatedObject;
    }
}